Heat & Energy Recovery Ventilator Installation
in San Marcos, TX

ERV / HRV Systems in San Marcos

A newer-home solution most people have not heard of — here is what it does for a tight San Marcos build.

The Tight-House Problem

A well-sealed San Marcos home keeps conditioned air in, but it also traps stale air, CO2, cooking odors, and humidity. Cracking a window throws away your cooling. A recovery ventilator solves the trade-off.

How Recovery Works

An ERV or HRV exchanges stale indoor air for fresh outdoor air, transferring most of the heat — and with an ERV, the moisture — between the two streams. You get fresh air while keeping most of the energy.

ERV vs. HRV in This Climate

In humid Hays County, an ERV is usually the right pick because it limits how much outdoor moisture comes in with the fresh air. We size it to the home and recommend the type that fits.

Why San Marcos Homes in Particular

The older neighborhoods around Belvin Street and downtown have homes that predate central air entirely. That means undersized panels, two-prong outlets, ungrounded circuits, and sometimes knob-and-tube still in service. We modernize it safely and pull the City of San Marcos permit so it is documented for resale.